CN116877633B - Damping device of measurement while drilling instrument based on hydraulic buffering - Google Patents
Damping device of measurement while drilling instrument based on hydraulic buffering Download PDFInfo
- Publication number
- CN116877633B CN116877633B CN202311140103.3A CN202311140103A CN116877633B CN 116877633 B CN116877633 B CN 116877633B CN 202311140103 A CN202311140103 A CN 202311140103A CN 116877633 B CN116877633 B CN 116877633B
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- support column
- annular
- fixedly connected
- measurement
- annular shell
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- 238000005553 drilling Methods 0.000 title claims abstract description 26
- 238000005259 measurement Methods 0.000 title claims abstract description 20
- 230000003139 buffering effect Effects 0.000 title claims abstract description 18
- 238000013016 damping Methods 0.000 title claims abstract description 15
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 10
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 10
- 241001330002 Bambuseae Species 0.000 claims abstract description 10
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 10
- 239000011425 bamboo Substances 0.000 claims abstract description 10
- 230000035939 shock Effects 0.000 claims abstract description 7
- 239000007787 solid Substances 0.000 claims abstract description 3
- 239000000872 buffer Substances 0.000 claims description 20
- 239000012530 fluid Substances 0.000 claims description 15
- 239000013013 elastic material Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/022—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
Abstract
The invention relates to the technical field of underground measuring tools, and discloses a damping device of a measurement while drilling instrument based on hydraulic buffering. The technical problems to be solved are as follows: at present, rubber is easy to age underground, and the cushioning effect of the rubber is easy to be reduced. The technical scheme of the invention is as follows: the utility model provides a measurement while drilling appearance damping device based on hydraulic pressure buffering, includes pressure-bearing section of thick bamboo, pressure-bearing section of thick bamboo rigid coupling has the solid fixed ring, gu fixed ring sliding connection has the support column, the instrument body is installed to the support column, the support column inlay with instrument body coupling's multicore line, pressure-bearing section of thick bamboo is provided with and is used for slowing down support column axial vibration's supporting mechanism. The invention supports the instrument body and the support column through the support mechanism and assists the instrument body to absorb shock.
Description
Technical Field
The invention relates to the technical field of underground measuring tools, and discloses a damping device of a measurement while drilling instrument based on hydraulic buffering.
Background
In the drilling process, the downhole parameters are particularly important, wherein the measurement while drilling instrument and the logging while drilling instrument are important devices for detecting the downhole parameters, the measurement while drilling instrument is mainly used for detecting parameters such as torque, pressure and the like of a drill bit, and the logging while drilling instrument is mainly used for detecting parameters such as downhole environment temperature, element content and the like.
The measurement while drilling instrument is generally placed in the pressure-bearing cylinder, the drill bit can vibrate during drilling, vibration can be directly transmitted to the measurement while drilling instrument through the pressure-bearing cylinder, and electric elements in the measurement while drilling instrument are damaged, so that the current measurement while drilling instrument generally needs to be connected with a damping mechanism, rubber is generally injected into the damping mechanism once after external metal connection is completed, vibration of the instrument is relieved through the rubber, but due to the environment of high temperature and high pressure in the well, the rubber formed by injection is easy to age, so that the damping mechanism is invalid, and the electric elements are damaged.
Disclosure of Invention
The invention provides a damping device of a measurement while drilling instrument based on hydraulic buffering, and aims to solve the problem that a damping mechanism in the existing measurement while drilling instrument is invalid because rubber in the damping mechanism is easy to age under a high-temperature and high-pressure environment.
The technical implementation scheme of the invention is as follows: the damping device of the measurement while drilling instrument based on hydraulic buffering comprises a pressure-bearing cylinder, wherein a fixed ring is fixedly connected in the pressure-bearing cylinder, the fixed ring is connected with a support column in a sliding manner, the support column is provided with an instrument body, a multi-core wire connected with the instrument body is embedded into the support column, and the pressure-bearing cylinder is provided with a supporting mechanism for slowing down axial vibration of the support column;
the supporting mechanism comprises an annular shell, the annular shell is fixedly connected in the pressure-bearing cylinder, fixing rods which are circumferentially distributed are fixedly connected with the annular shell, a connecting plate is connected with the fixing rods in a sliding mode, a first elastic piece is fixedly connected between the connecting plate and the annular shell, a supporting ring is rotatably connected with the supporting column, the supporting ring is made of elastic materials, the supporting ring is fixedly connected with the connecting plate which is circumferentially distributed, and a buffer part used for buffering vibration of the supporting column is arranged on the annular shell;
the buffer part comprises a sleeve which is circumferentially distributed, the sleeve which is circumferentially distributed is fixedly connected to the inner annular surface of the annular shell and is communicated with the inner annular surface of the annular shell, the sleeve is slidably connected with a sliding rod, a supporting column is provided with a groove which is circumferentially distributed and corresponds to the sliding rod, a first pushing disc which is fixedly connected with the adjacent sliding rod is slidably connected in the sleeve, a second pushing disc which is slidably connected with the adjacent sliding rod is slidably connected in the sleeve, an annular groove is formed in the first pushing disc, a second elastic piece is fixedly connected between the first pushing disc and the adjacent second pushing disc, one side, which is far away from the adjacent second pushing disc, is positioned in the annular groove of the adjacent first pushing disc, a third elastic piece is fixedly connected between the second pushing disc and the annular shell, fluid is filled in the annular shell and the sleeve, and the first pushing disc and the second pushing disc are both provided with circumferentially distributed through grooves.
Preferably, the inner ring surface of the fixed ring is provided with first latches which are distributed in an annular shape, the support column is provided with second latches which are distributed in an annular shape and matched with the first latches, and the first latches and the second latches are made of elastic materials.
Preferably, the inclination directions of the through grooves of the first push disc and the second push disc are opposite.
Preferably, at least three sleeves are provided.
Preferably, the curvature of the cambered surface at any position of the groove is equal.
Preferably, the slide bar is provided with balls for reducing friction between the slide bar and the support column.
Preferably, the elastic coefficient of the third elastic member is greater than the elastic coefficient of the second elastic member.
Preferably, the fluid filled in the annular housing and the sleeve is a compressible fluid.
The beneficial effects are that: according to the invention, the instrument body and the support column are supported by the first elastic piece and the support ring, the instrument body is assisted in shock absorption, when the support column is subjected to vibration in any direction, if the vibration is the same, the displacement amount of the slide bar relative to the support column is equal, the buffer force of the support column is ensured to be equal, excessive or insufficient deviation of the displacement of the support column relative to the pressure-bearing cylinder is avoided when the support column is subjected to vibration in different directions, the vibration frequency of the support column is different, the use process of the instrument body is further influenced, the second elastic piece and the third elastic piece are both springs, the springs are not required to be stretched, only unidirectional compression and resetting are required, and the service lives of the second elastic piece and the third elastic piece are prolonged.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a cross-sectional view of a three-dimensional structure of the present invention;
FIG. 3 is a schematic perspective view of a supporting mechanism according to the present invention;
FIG. 4 is a schematic perspective view of a cushioning component of the present invention;
fig. 5 is a schematic perspective view of the first pushing disc, the second pushing disc and other parts according to the present invention.
Part names and serial numbers in the figure: 1: pressure-bearing section of thick bamboo, 2: a fixing ring, 201: first latch, 3: support column, 301: second latch, 302: groove, 4: instrument body, 401: multi-core wire, 5: annular casing, 6: fixing rod, 7: connecting plate, 8: first elastic member, 9: support ring, 10: sleeve, 11: slide bar, 12: first pushing disc, 13: second pushing disc, 14: second elastic member, 15: and a third elastic member.
Detailed Description
Although the invention may be described with respect to a particular application or industry, those skilled in the art will recognize the broader applicability of the invention. Those of ordinary skill in the art will recognize such things as: terms such as circumferential, horizontal, rightward, and the like are used to describe the drawings and are not intended to limit the scope of the invention as defined by the appended claims. Such as: any numerical designation of the first or second and the like is merely illustrative and is not intended to limit the scope of the present invention in any way, which is to be construed as a primary alternative to some of the problems existing in the prior art by means of rubber cushioning.
1-3, including pressure-bearing section of thick bamboo 1, fixedly connected with solid fixed ring 2 in the pressure-bearing section of thick bamboo 1, gu the interior ring face sliding connection of fixed ring 2 has support column 3, instrument body 4 is installed through the bolt to the upper surface of support column 3, support column 3 inlays the multicore line 401 of being connected with instrument body 4, multicore line 401 is used for being connected with the instrument of below, gu the interior ring face of fixed ring 2 is provided with a plurality of first latch 201 that is annular and distributes, support column 3 is provided with and is annular and be distributed and with a plurality of second latch 301 of first latch 201 complex, there is the gap between first latch 201 and the adjacent second latch 301, the material of first latch 201 and second latch 301 is high temperature resistant elastic material, when support column 3 receives the vibrations, support column 3 drives second latch 301 rotation extrusion first latch 201, second latch 301 and first latch 201 all take place deformation and receive vibrations to cushion support column 3, pressure-bearing section of thick bamboo 1 is provided with the supporting mechanism that is used for slowing down support column 3 axial vibrations.
As shown in fig. 1-3, the supporting mechanism comprises an annular shell 5, the annular shell 5 is fixedly connected in a pressure-bearing cylinder 1, the annular shell 5 is positioned on the upper side of a fixed ring 2, four fixing rods 6 distributed circumferentially are fixedly connected to the annular shell 5, a connecting plate 7 is connected to the upper side of the fixing rods 6 in a sliding manner, a first elastic piece 8 is fixedly connected between the connecting plate 7 and the annular shell 5, the first elastic piece 8 is a spring, the first elastic piece 8 is positioned on the outer side of an adjacent fixing rod 6, the first elastic piece 8 is mainly used for supporting the weight of a supporting column 3 and an instrument body 4, a supporting ring 9 is rotatably connected to the upper portion of the outer side of the supporting column 3, the supporting ring 9 is made of a high-temperature-resistant elastic material, the supporting column 3 is prevented from being locked in the horizontal direction to cause the vibration of the supporting column 3, the supporting ring 9 is fixedly connected with the four connecting plates 7, and the annular shell 5 is provided with a buffer part for buffering vibration of the supporting column 3.
As shown in fig. 2-5, the buffer member comprises four circumferentially distributed sleeves 10, the four sleeves 10 are fixedly connected to the inner ring surface of the annular housing 5 and are communicated with the same, one side of the sleeve 10 away from the annular housing 5 is slidably connected with a slide bar 11, the support column 3 is provided with a groove 302 circumferentially distributed and corresponding to the slide bar 11, the slide bar 11 is provided with a ball used for reducing friction force between the support column 3 and the slide bar 11, the support column 3 and the slide bar 11 are prevented from being blocked when relatively moving, the curvature of the cambered surface at any position of the groove 302 is equal, when the vibration applied to the support column 3 is equal in size and different in direction, the distance moved by the slide bar 11 is equal, the vibration buffer force applied to the support column 3 is ensured to be equal when different vibration is faced, a first push plate 12 fixedly connected with an adjacent slide bar 11 is slidably connected with a second push plate 13 slidably connected with the adjacent slide bar 11 in the sleeve 10, an annular groove is arranged on one side of the first push disc 12 close to the adjacent second push disc 13, a second elastic piece 14 is fixedly connected between the first push disc 12 and the adjacent second push disc 13, the second elastic piece 14 is a spring, one side of the second elastic piece 14 away from the adjacent second push disc 13 is positioned in the annular groove of the adjacent first push disc 12, when the vibration suffered by the instrument body 4 is smaller, the second elastic piece 14 deforms, but the second elastic piece 14 does not reach a limit state, a third elastic piece 15 is fixedly connected between the second push disc 13 and the annular shell 5, the third elastic piece 15 is a spring, the elastic coefficient of the third elastic piece 15 is larger than that of the second elastic piece 14, when the vibration is smaller, the elastic piece with small elastic coefficient is easier to react to the vibration, the damping effect is better, when the vibration is larger, the third elastic piece 15 buffers the vibration, the annular shell 5 and the sleeve 10 are filled with compressible fluid, the first push disc 12 and the second push disc 13 are provided with through grooves distributed circumferentially, the inclined directions of the through grooves of the first push disc 12 and the second push disc 13 are opposite, when vibration is large, the first push disc 12 pushes the second push disc 13 to move, fluid is blocked when passing through the through grooves of the first push disc 12 and the second push disc 13, and therefore buffering is carried out on the first push disc 12 and the second push disc 13, and finally the instrument body 4 is buffered.
In the vertical well drilling process, the first elastic member 8 is mainly used for supporting the weights of the connecting plate 7, the supporting ring 9, the supporting column 3 and the instrument body 4, and assisting the balls on the sliding rod 11 to be located at the center position of the adjacent groove 302, so as to ensure that the buffering forces applied to the vibration applied to the supporting column 3 in any direction are equal, and the instrument body 4 is mounted on the supporting column 3, so the following description is given by taking the vibration applied to the supporting column 3 as an example:
when the support column 3 is subjected to longitudinal vibration, the first elastic member 8 is stretched or extruded to assist the support column 3 to absorb vibration, taking the vibration to which the support column 3 is subjected to upward as an example, the support column 3 moves upward to extrude balls on the four slide bars 11 through the grooves 302, taking the slide bars 11 on the right side as an example, the slide bars 11 are extruded to drive the first push plate 12 to move rightwards, when the vibration is smaller, the left-right movement amplitude of the slide bars 11 is smaller, and the elastic coefficient of the third elastic member 15 is larger than that of the second elastic member 14, therefore, the third elastic member 15 is not compressed first, and when the vibration is smaller, the elastic member with small elastic coefficient is easier to react to the vibration, the damping effect is better, therefore, the second elastic member 14 with small elastic coefficient is required to buffer the slide bars 11 first, during the rightward movement of the slide bar 11, since the volume of the slide bar 11 entering the sleeve 10 increases, and the volumes of the sleeve 10 and the annular housing 5 decrease, the fluid in the sleeve 10 and the annular housing 5 is compressed, and the fluid compression buffers the rightward movement force of the slide bar 11, that is, buffers the vibration of the support column 3, during the rightward movement of the first push plate 12, the compressible fluid between the first push plate 12 and the second push plate 13 enters the left side of the first push plate 12 through the through groove of the first push plate 12, and during the passage of the compressible fluid through the through groove of the first push plate 12, applies a certain fluid resistance to the first push plate 12, and further buffers the first push plate 12.
When the vibration applied to the support column 3 is larger, the amplitude and the speed of the upward vibration of the support column 3 are increased, so that the distance to the right after the slide rod 11 is extruded is further increased, the second elastic piece 14 is compressed to be shortest, in order to avoid damage after the second elastic piece 14 is compressed to the limit, therefore, after the first push disc 12 is contacted with the second push disc 13, the second elastic piece 14 completely enters the annular groove of the first push disc 12, the second elastic piece 14 is not compressed any more, then, the first push disc 12 drives the second push disc 13 to move rightwards, the third elastic piece 15 is compressed, the support column 3 is buffered, in the process of rightward movement after the first push disc 12 and the second push disc 13 are contacted, fluid on the right side of the second push disc 13 sequentially passes through the through groove of the second push disc 13 and the through groove of the first push disc 12, and the direction of the through groove of the first push disc 12 and the through groove of the second push disc 13 is opposite, the resistance of the fluid increases when passing through the through grooves of the first push disc 12 and the second push disc 13, and the buffer effect on the second push disc 13 is increased for larger through resistance.
After the vibration is finished, the first elastic piece 8, the second elastic piece 14 and the third elastic piece 15 are reset, so that the balls of the sliding rod 11 are continuously positioned at the center of the groove 302, vibration in any direction can be received besides longitudinal vibration in the drilling process, due to continuous rotation of the drill bit, when the drill bit encounters a hard object and is blocked, the supporting column 3 can rotate circumferentially due to the action of inertia, the four sliding rods 11 can be separated from each other and buffer the vibration when the supporting column 3 rotates circumferentially, the supporting column 3 drives the second clamping tooth 301 to rotate in the rotating process of the supporting column 3, the second clamping tooth 301 presses the first clamping tooth 201 and deforms to buffer the circumferential vibration of the supporting column 3, when the supporting column 3 receives vibration in the horizontal plane direction, the supporting column 3 translates rightwards for example, at the moment, when the support column 3 moves right, the front and rear grooves 302 of the support column 3 also press the front and rear slide bars 11, so as to buffer the support column 3, therefore, the slide bars 11 and the grooves 302 need to be at least three, so that when the support column 3 moves in the horizontal plane direction, the rest slide bars 11 can buffer the support column 3, when the support column 3 moves right, the support ring 9, the first latch 201 and the second latch 301 can generate tiny deformation to buffer the vibration of the support column 3, and as the radian of the cambered surface of any position of the groove 302 is equal, when the support column 3 is subjected to vibration in any direction, if the vibration sizes are the same, the displacement amount of the slide bars 11 relative to the support column 3 is equal, so that the buffer force to the support column 3 is equal, and when the support column 3 is not subjected to vibration in different directions, the support column 3 has too much or too little deviation for the displacement of the pressure-bearing cylinder 1, causes the support column 3 to vibrate at different frequencies, further influences the use of the instrument body 4, and the second elastic element 14 and the third elastic element 15 are springs, do not need to be stretched, only need to perform unidirectional compression and reset, and prolong the service lives of the second elastic element 14 and the third elastic element 15.
The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of the present invention, so that all equivalent modifications made by the appended claims shall be included in the scope of the present invention.
Claims (6)
1. The utility model provides a measurement while drilling appearance damping device based on hydraulic pressure buffering, its characterized in that, including pressure-bearing section of thick bamboo (1), fixedly connected with solid fixed ring (2) in pressure-bearing section of thick bamboo (1), gu fixed ring (2) sliding connection has support column (3), instrument body (4) are installed to support column (3), support column (3) inlay with instrument body (4) connected multicore line (401), pressure-bearing section of thick bamboo (1) are provided with the supporting mechanism who is used for slowing down support column (3) axial vibrations;
the supporting mechanism comprises an annular shell (5), the annular shell (5) is fixedly connected in the pressure-bearing cylinder (1), a fixing rod (6) which is circumferentially distributed is fixedly connected to the annular shell (5), a connecting plate (7) is slidably connected to the fixing rod (6), a first elastic piece (8) is fixedly connected between the connecting plate (7) and the annular shell (5), a supporting ring (9) is rotatably connected to the supporting column (3), the supporting ring (9) is made of elastic materials, the supporting ring (9) is fixedly connected with the connecting plate (7) which is circumferentially distributed, and a buffer component for buffering vibration of the supporting column (3) is arranged on the annular shell (5);
the buffer component comprises circumferentially distributed sleeves (10), the circumferentially distributed sleeves (10) are fixedly connected to the inner annular surface of the annular shell (5) and are communicated with the annular shell, the sleeves (10) are slidably connected with sliding rods (11), the support columns (3) are provided with grooves (302) circumferentially distributed and corresponding to the sliding rods (11), first pushing discs (12) fixedly connected with adjacent sliding rods (11) are slidably connected in the sleeves (10), second pushing discs (13) slidably connected with adjacent sliding rods (11) are slidably connected in the sleeves (10), annular grooves are formed in the first pushing discs (12), second elastic pieces (14) are fixedly connected between the first pushing discs (12) and the adjacent second pushing discs (13), one sides, far away from the adjacent second pushing discs (13), of the second elastic pieces are located in the adjacent first pushing discs (12), second pushing discs (13) are fixedly connected with the annular shell (11) in a sliding mode, and fluid is filled into the annular shell (10) and the annular shell (13) in a circumferential mode, and the annular grooves (13) are fixedly connected with the first pushing discs (12);
the inclination directions of the through grooves of the first pushing disc (12) and the second pushing disc (13) are opposite;
the elastic coefficient of the third elastic piece (15) is larger than that of the second elastic piece (14).
2. The shock absorbing device for the measurement while drilling instrument based on the hydraulic buffering is characterized in that first clamping teeth (201) which are distributed in an annular mode are arranged on the inner annular surface of the fixed ring (2), second clamping teeth (301) which are distributed in an annular mode and matched with the first clamping teeth (201) are arranged on the supporting column (3), and the first clamping teeth (201) and the second clamping teeth (301) are made of elastic materials.
3. A shock absorbing device for a measurement while drilling device based on hydraulic buffering according to claim 1, characterized in that the sleeve (10) is provided with at least three.
4. A shock absorbing device for a measurement while drilling instrument based on hydraulic buffering according to claim 1, wherein the curvature of the cambered surface at any position of the groove (302) is equal.
5. A shock absorbing device for a measurement while drilling instrument based on hydraulic buffering according to claim 1, characterized in that the slide bar (11) is provided with balls for reducing friction between it and the support column (3).
6. A shock absorbing device for a measurement while drilling device based on hydraulic buffering according to claim 1, characterized in that the fluid filled in the annular housing (5) and the sleeve (10) is a compressible fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311140103.3A CN116877633B (en) | 2023-09-06 | 2023-09-06 | Damping device of measurement while drilling instrument based on hydraulic buffering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311140103.3A CN116877633B (en) | 2023-09-06 | 2023-09-06 | Damping device of measurement while drilling instrument based on hydraulic buffering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116877633A CN116877633A (en) | 2023-10-13 |
| CN116877633B true CN116877633B (en) | 2023-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311140103.3A Active CN116877633B (en) | 2023-09-06 | 2023-09-06 | Damping device of measurement while drilling instrument based on hydraulic buffering |
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| CN (1) | CN116877633B (en) |
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| KR102475154B1 (en) * | 2022-02-10 | 2022-12-07 | (주)엔지피 | Improved Distribution Board seismic device |
| CN114412454A (en) * | 2022-02-14 | 2022-04-29 | 王静凯 | Oil drilling is with logging instrument while drilling with high-strength antidetonation function |
| CN218624200U (en) * | 2022-11-26 | 2023-03-14 | 姚欣宇 | Drilling-while-drilling tester shock absorber capable of preventing drilling fluid from scouring |
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| CN116877633A (en) | 2023-10-13 |
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